Final answer:
The male accessory glands are the seminal vesicles, prostate gland, and bulbourethral (Cowper's) glands. These glands secrete fluids that nourish, protect, and activate sperm, and provide lubrication during ejaculation.
Step-by-step explanation:
Male Accessory Glands and their Functions
The male accessory glands are the seminal vesicles, prostate gland, and bulbourethral (Cowper's) glands. These glands secrete various fluids that combine with sperm to form semen.
1. Seminal Vesicles:
The seminal vesicles produce a yellowish, viscous fluid that nourishes and helps transport sperm. This fluid contains fructose, prostaglandins, and other substances that provide energy to sperm and enhance their motility.
2. Prostate Gland:
The prostate gland secretes a milky fluid that helps activate and protect sperm. It contains enzymes, citric acid, and substances that neutralize the acidity of the vaginal tract, enhancing the survival of sperm.
3. Bulbourethral (Cowper's) Glands:
The bulbourethral glands produce a clear, sticky fluid that lubricates the urethra and neutralizes traces of acidic urine in the urethra before ejaculation. This lubrication and neutralization help protect the sperm as they travel through the urethra.
Overall, these male accessory glands play crucial roles in sperm survival, motility, and preparation for ejaculation.